Due to it's short (3 inch) barrel length all 22LR ammunition with a factory listed velocity of 1600 feet per second or less will deliver subsonic performance. G-CORE Technology - Patented Stainless Steel G-CORE design is durable easy to clean and light weight. Reliability - MIST-22V delivers the same accuracy and reliability with a wide range of 22LR ammunition that customers have come to expect from the SW22 Victory design. - Silent by Design - The Gemtech MIST-22V is the ultimate signature suppression system designed for use on the SW22 Victory pistol. The MIST-22V replaces the standard barrel with a barrel/suppressor combo designed to provide superb suppression in a compact package. - Caliber: .22LR - Diameter: .950-1.12 - Overall Length: 3 barrel / 8.95 overall length - Weight: 10.9 oz. - Mount Type: Fits onto the Smith & Wesson SW22 Victory Pistol only - Tube Material: 7075-T6 Aluminum - Full Auto Rated: No - Tube Finish: Matte Black Cerakote